<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>注册</title>
    <style>
        body{
            background-color: cornflowerblue;
        } 
        div.container{
            background-color: wheat;
            width: 80%;
            margin: 50px auto;
            padding: 50px;
        }
    </style>
</head>
<body>
<div class="container">
    <form>
        <div>
        用户名：<input type="text" name="username">
        </div>
        密码：<input type="password" name="password"><br>
        手机号：<input type="text" name="phone"><br>
        手机验证码：<input type="text" name="code"><br>
        <button type="submit">注册</button>
    </form>
</div>
</body>
</html>